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Date: 23-4-2019
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Date: 12-8-2018
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Date: 29-9-2018
1811
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Find the figure bounded by a line which has the maximum area for a given perimeter. The solution is a semicircle. The problem is based on a passage from Virgil's Aeneid:
"The Kingdom you see is Carthage, the Tyrians, the town of Agenor;
But the country around is Libya, no folk to meet in war.
Dido, who left the city of Tyre to escape her brother,
Rules here--a long and labyrinthine tale of wrong
Is hers, but I will touch on its salient points in order....Dido, in great disquiet, organised her friends for escape.
They met together, all those who harshly hated the tyrant
Or keenly feared him: they seized some ships which chanced to be ready...
They came to this spot, where to-day you can behold the mighty
Battlements and the rising citadel of New Carthage,
And purchased a site, which was named 'Bull's Hide' after the bargain
By which they should get as much land as they could enclose with a bull's hide."
REFERENCES:
Thomas, I. Greek Mathematical Works, Vol. 2: From Aristarchus to Pappus. London: Heinemann, 1980.
Tikhomirov, V. M. Stories About Maxima and Minima. Providence, RI: Amer. Math. Soc., pp. 9-18, 1991.
Virgil. Translated by C. D. Lewis. Book I, lines 307-372 in The Aeneid. New York: Doubleday, pp. 22-23, 1953.
Wells, D. The Penguin Dictionary of Curious and Interesting Geometry. London: Penguin, pp. 122-124, 1991.
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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مكتبة أمّ البنين النسويّة تصدر العدد 212 من مجلّة رياض الزهراء (عليها السلام)
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